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    Coolclient Msagent Sys Rootkit Driver

    avatar
    GlassDiceBearhttps://www.dicebear.comhttps://creativecommons.org/publicdomain/zero/1.0/„Glass” (https://www.dicebear.com) by „DiceBear”, licensed under „CC0 1.0” (https://creativecommons.org/publicdomain/zero/1.0/)
    Duo Tech@duotech
    •updated Aug 14, 2026•0•0•5

    Detects the msagent.sys signed kernel-mode rootkit driver used by the CoolClient backdoor (HoneyMyte/Mustang Panda)

    YARA

    Tags

    Defense EvasionRootkitWindowsEndpoint File/driver Scanning (YARA)HoneyMyteMustangPandaCoolClientmsagentsys

    Found in

    • HoneyMyte Adds Kernel Rootkit to CoolClient BackdoorLast updated Aug 14, 2026

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